Cake-forming machine



Sept. 25v, 1923.

TRACE CAKE FORMING MACHINE Filed Oct. 18 1920 v 6 Sheets-Sheet 5 l||||||| Illllllllllllllllll lu-lll lulllllllll -1- liiiill--- 1 L lillliialll xnrV m m/11 m M; /M v.

Arromvm' Sept, 25, 1923.

' v 3,46%,765 R. A. TRACE CAKE FORMING -MACHINE I Filed 0st, 18, 1920 I s swag-sheet 4 INVENTOR ATTORNEYSV Sept. 25 1923.

R. A. TRACE" 0mm FORMING mulmz File d Oct. 18 1920 '5 Sheets-Sheet 5 INVENTOR Rwpfle 4? Trace,

ATTORNEYS el'licient iaa e rson AND EBASS essence/rams: IllfmCl'IINE.

Application filed October 3.8, 192

:1. 191 -771, it may 00?? Be t known that l, RUSSELL A. Tr Aon,

. ayton. inthe county of Montgomery and State 0 5 Ohio, have invented certain new useful improvements in Cake-Forming :ies, of which the following is a speciat on. reference being had therein to the accompanying drawing.

M invention relates to machines for forming cakes and in particular. for. forming cakes from oil bearing material.

This material is delivered to the former customarily from a cooker and after it is formed it is delivered to a press Where the oil is pressed from the material;

In a machine of this type'using low and high pressure oil, it is highly desirable to utilize l pressure for the initial forming operation and high pressure for the final forming operation, 7 7

It is also desirable to utilize as little of the high pressure as possible in order to economize on the amount of fluid which must be employed. The high pressure is or itomarily kept atabout 4:.000 pounds, While the low pressure is in the neighhorhood of $00 to 500 pounds atits maximum. 7

My invent-ion accomplishes the object of utilizing the low pressure upto the very last stage of the operation of the former and then the high pressureis applie so that only a very small quantity of oil or other liquid used in the former is needed to give this final finishing step to the operation. i

-t is desirable also that the transformation from low pressure to high pressure should take place automatically without the attention of the operator through any gauge orsimilar mechanism and that it should be entis'ely automatic so that it should not depend upon the human GlGIDQF side oi the former showing the mechanismv of the carriage; I

Fig. 3 1s a top plan view of the former citizen of the United States, residing at' as at 6; This space communicates W at allitor the and uniform operation of the.

Serial No. 417,824.

showing a portion it broken away to disclose the valves con 'Ith the ram and ra n travels;

view or a section on of th coi itr 01 Val ve casing and the, valves there disclo i he 10W pressure check valve anothe hi essure inlet valve; i

hllig. 5, is a section of the .e zhaus t valve; Fig. 6, 1s a section ofthe low pressure inlet valve; V 7

Fig.7, is a top and bottom plan vie v of a portion of the high pressure inlet valve; and'enlarged side elevation and, l r

Fig. 8, is a section o tt'he supporting'hase cylinder and ram traveling therein upon which the movable forming head I mounted. i i Referring to thedr'awings, 1, upon which. is mounted the cylinderQ, The cylinder '2 is divided into two members, a cup-shaped memher 3 and a cylindrical member 4 41 the ram 5, but is separated from it by a. n

isa base guide for the. ram 5, While 3 does not come in contact with the nee the ram and'the f outside through a vent 7 topermitthe tree passage of air and'the circulation tha'ein' for the evaporation of any leakageor mois- 7 Y turevvhich may get by the packing S. 9. is a cylindrical passage Way communicating.

With the interior 10 oi"? the ram. This pas sage ivay is'cushioned by the plug-11 when the ram is in its lowermost, position. -This cylindrical passage vay communicatesat 12- with the inlet pipe 13 and the outlet pipe 1% which communicates with the outlet valve 15, shown in detail inFiguroS. 16 is the low pressure inlet line and 17 is the. low

pressure inlet "valve. This valve is'opcrv the lever. 19 WlllCll also operates the exhaust valve 15' ated through the plungerlS lav through the pin 20. This lever is operated up and down; when it is moved upwardly,

it opens the inlet valves and 'ivhen it. is

moveddownwardly the spring inthe inlet.

it and it opens the outlet or valve close exhaust valve 15. Qlis check valve in the;

inlet loiv pressure line 22, 23"is the control. valve casing, 2% is the high pressure inlet While 26 is the stationary headSuppOrted by the columns 27. 28 is a charginghopper 105. passage way, 25 is a movablepresserhead,"

LIX

hopper l1 head at This a rod 'This rod the cylinder PIG piston is left 1 and directi u when preso he supplyline and (lll'LClrOi hen piston L and so so U! I";

, l vd by the o 1 1 1 an desired chai actei. porting frame upon which the anisni travels.

sup hopper meeh Referring in detail to Figure there will be seen the control valve casing 23. i i l this casing there communicates the low pressure passage way 22 at 38. The inlet pressiu'epasses through 39, past the checl valve l6 which is held open by the low pressure inlet. The low pressure proceeds throng-i the main passage way 41, through 1.3 to the The low pressure also pa s through the passage way $2, to the area behind the head 44 carried by the stem of the high pressure inlet valve designated as at. This valve is normally kept in seated position by the spring e7, held in a plug 48, screwed into the casing 23. The high pressure line 2%- comniunicates with tl1 high pressure inlet port in the cas 23 When the valve 46 is opened this passage way 2i, 4?), and the passage way 50 are in communication, allowing the passage of high pressure fluid through the line 13 to the pr se for the final o eration.

Referring to Figure .5 it will be seen that the stem carries a valve member 5i. This member is normally seated by the sprin 2 actuated by the pin 53.

In i igure 6 will be the inlet valve where a similar construction is employed. 18 is the pin actuating the valve member held in position by the spring 55, which is actuated by the pin 56.

By the use of the word passaae or pas sageway above. is understood the element provided with such passage or passageway rather than the passage itself.

Method of operation.

pounds pressure through 38, S9, lirtingz passing by 4 1 to 13 and thence to the This moves the movable head towards the stationary head. i

As soon as the pressure in the to the increasing pressure, rises line. due to about 4:50 to 500 pounds the back ressure throu h r closes the va ve cutting off the low l takes place so that very little liquid is used and very little of the pressure is consumed, making the system quite economical The operator then upon fil'llS orming operation, depresses the liver 19.

-by allowing the inlet valve to close,

line being checked by the check. v and pushing the pin 20 down the pressure of the spring 55 in the outlet valve allowing the liquid to escape from the ram.

The operation desired. 7 The pressure is balanced to an extent by permitting the oil to circulate around from 57. The back pressure must overcome only the area of the valve member e6 when seated.

It will be noted that the standards 27 supporting the stationary head 26 are lo-' cated behind the movable forming or presser head and to either side of the machine. The purpose of this is to allow the chargingif and the adjustment of the cloth without in terfercnce on the part'of the operator. it

is a matter of considerable advantage to be. able to make these ad ustment-s and to super-- of the op-' intend the charging on the part orator without having standards in the op erators way around which he must work in adjusting the cloth and fixing the charge ready for forming.

Th timing of this operation oi": forming; I

carefully worked out in connection with the remainder of the procedure of: cooking and pressing so that any undue delay at this stage of the proceeding. which is frequently the case in prior machines of this character is matter of handicap, My invention obviates any cause, for delay and provides a machine'towhich free access may be had.

While I have shown and described. certain features as constiliutingi my invention it will be understood that parts have been shown for purposesof illustration onlv. and that maybe repeated as often I do not desire to be limited to such details, l

as obviousinodifications will occur to a person skilled n the art.

Having thus fully described my Letters Patent, is

1; In a former, a low pressure inlet valve,"

an outlet valve,means for successively actuating said valves at will. high pressure inlet valve, means for cutting off a low pres- I invention, what I claim as new and desire to secure by line, a high pressure supply line, a low pressure inlet valve, a high pressure inlet valve, an outlet valve, means for operating; said low pressure inlet and outlet valves, an inlet checlr valve adapted to beopened by the low pressure and closed by the high pressure and means for opening-the high pressure valve when the low pressure reaches a predeter-.

mined pressure. a ran means for communieating pressure to said ram, and a check valve in the low pressure supply line, whereby low pressure and high pressure are successively applied to said ram.

' at. In a former, a low pressure supply, a low pressure supply line connected to'a low pressure inlet valve, a low pressure inlet valve, a low pressure line from said inlet valve to a control valve, a check valve in said line last mentioned, a control valve having a passage way communicating with the ram, a check valve adapted to be opened by said low pressure, and seated by high pressure, a high pressure supply line, a high pressure inlet valve located in said control valve oasing, a high pressure passage way communicating with the low pressure passage way, a

passage way communicating with the low pressure passage way and one end] of the high pressure inlet valve to admit low pre sure to shift said high pressure inlet valve when the low pressure reaches a predetermined point, a'ram, and an outlet line and outlet valve connected to said ram, whereby low pressure and high pressure are successively applied to said ram.

' 5. In a control valve, a casing, a low pressure inlet, a low pressure passage way, a check valve; a high pressure passage way in communication with said'low passage way, an exit passage way, a high pressure valve consisting of a stem and a valve member, a.

piston on the steni'of said high pressure valve, a cylinder in which saidpiston travels and means for communication between said low pressure passage way and said cylinder, a high pressure passageway communicating with a cylinder in which said valve member travels, a tapered shoulder on said valve member and 'a plurality of longitudin'alpassage ways on the exterior thereof, a guiding casing for said valve member located in existing passage way.

6. in former, a base, a e mounted tiereon, a rain working i said-cylinder,

saidram havn cylindri l area therein, a tubular pass? way throusin said support b s A A k in sliding, iga ernent with n and.

cylinder in which said rain travels having a communicating vent a movable forming head carried by said ram, a stationary forn in head, and means for successively apsaid ram and forming heads.

7. In a former, a base, a cylinder mounted valve, high pressure inletvalve, o ut-,

let valve. means-for operatingsaid inlet pressure and oiitlet valves,

pressure andwelosed by thehie'h pressure, and ans for opening the high pressure vs. when the low ,ressure reaches predetermined pressure, means for communicating pressure to the ram and a check valve in the low pressure supply line, whereeessively applied to said ram.

o. in a .i riner, a low pressure a high pressure supply line, a low pressure inlet valve, a h gh pressure inlet valve, an

outlet valve. means tor-operating saidlow supply line,

plurality of ports low pressure and high pressure are suc- V tar passage way and said ram; asaid prying low pressure and high pressure to v V and inlet e'heclr valves adapted to be opened b v the low pressure inlet and outlet valves, an: inlet x check valve adapted to he opened by the low pressure and closedby the high pressure and means for opening the'high pressure determined pressure,a ram, means for com inic ting pressure to said ram, a check .11 the. low pressure supply line,

valve when the low pressiu'e reaches pre said head, and means for charging with a predetermined load said movable head, and means for supporting the stationary head, so as not to interfere with the charging of the movable head, whereby lo oressure and high pressure are successively applied to ram.

9, in e. former, line, 2. high pressu e supply line, alow pressure inlet valve, :1 high pressure inlet "alve, an outlet valve, means for Operating said inlet low pressure and outlet valves, an inlet cheol: {'slve adapted to be opened by the low pressure and closed by the high pressure and means for opening the high pressure valve when the low pressure reaches apredetermined pressure, a ram, means for communicating pressure to said mm, a check valve in the low pressure supply line, a mova low pressure supply messes able head carried by the ram, having a rea charging means, a charging means adapts ed to be re iproeeted in and out of charging position consisting of hopper to carry the charge adep ed to be moved over said reeeptacle on the movable head, between sai head and asiatioual-y l'zezid of the former, a statieuery head, means for support therefei' cons sting of'standei'ds to the rear of the mov'il eh apparatus, and means for actuating s cllfil glng apparatus at the will of the operator, whereby low pressure and high pressure are successively applied to said ram.

testimony whereof, I a; my signa- RUSSELL A. TRACE )lev heed sud on either side of said 

